rs67666821(-;T)

CYP3A4*20 carrier; potential side effects from certain drugs

Magnitude
2.5Worth knowing
Repute
Not rated
On SNPedia
rs67666821(-;T)
Gene
CYP3A4

Other genotypes of rs67666821

  1. -;-Goodcommon in complete genomicsTypical · 0.0
  2. T;TMost notableBadCYP3A4*20 homozygote; side effects likely from many drugsVery important · 5.0

All about rs67666821

Source and license

Adapted from rs67666821(-;T) on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.

SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.